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Products
Model No.: 20CrNiMoH 8620H
Brand: HuiJie
Usage: Special Purpose
Type: Seamless
Technique: Cold Drawn
Material: Alloy Steel
Surface Treatment: Black
Section Shape: Round
Heat-treatment: Stress Released Or Spheroidized Annealled
Grain Size: Min ASTM 8
Similar Steel Grade: 8620H 20CrNiMoH 8620
Standard: ASTM A534 AISI8620
Packaging: Bundles Packing with plastic bags wrapped
Productivity: 5000tons per month
Transportation: Ocean,Land
Place of Origin: Made in China
Certificate: TS16949 ISO9001
HS Code: 7304.59.90
Port: Ningbo,Shanghai
Payment Type: L/C,T/T,D/P,Paypal,Western Union
Incoterm: FOB,CFR,CIF
Products Description:
20CrNiMoH/8620H properties is a carburing alloy steel specification as ASTM A534/GB3077
Other Related Specifications ASTM A295/A295M DIN EN 10083/3 JIS G4053 DIN17210
Chemical compostion
Mass fraction (%):
Carbon C: 0.17-0.23
Si: 0.17-0.37
Mn: 0.60-0.95
Sulfur s: allowable residual content ≤ 0.035
P: allowable residual content ≤ 0.035
Cr: 0.40-0.70
Ni: 0.25-0.75
Mo: 0.20-0.30
Cu: allowable residual content ≤ 0.30
Mechanical property:
Sample blank size
15mm
[heat treatment]
Quenching temperature (℃): 850; coolant: Oil
Tempering heating temperature (℃): 200; coolant: empty
20CrNiMo round steel
20CrNiMo round steel
Tensile strength σ B (MPA): ≥ 980 (100)
Yield strength σ s (MPA): ≥ 785 (80)
Elongation δ 5 (%): ≥ 9
Reduction of area ψ (%): ≥ 40
Impact energy Akv (J): ≥ 47
Impact toughness value α kV (J / cm2): ≥ 59 (6) Brinell hardness (hbs100 / 3000) (annealing or high temperature tempering state): ≥ 197
Delivery status: delivered in heat treatment (normalizing, annealing or high temperature tempering) or non heat treatment status, which shall be indicated in the contract.
20CrNiMo steel was originally 8620 in American AISI and SAE standards. The hardenability is similar to that of 20crni steel. Although the Ni content of the steel is half of that of 20crni steel, the upper part of the isothermal transformation curve of austenite moves to the right due to the addition of a small amount of Mo element, and the hardenability of the steel is still very good due to the proper increase of Mn content, and the strength is also higher than that of 20crni steel. It is often used to manufacture the gears in the engine and transmission system of small and medium-sized automobiles and tractors; it can also replace 12crni3 steel to manufacture the carburizing parts and cyaniding parts with high core performance, such as the claws and cones of the roller bits used in oil drilling and metallurgical open pit mining. 20CrNiMo is resistant to certain temperature due to its molybdenum content, in addition to its good comprehensive properties. The forging of connecting rod and valve section of gear rotor internal combustion engine used for manufacturing steam turbine.
Delivery status: hot rolled or forged steel shall be delivered in hot-rolled (forged) or annealed state. Cold drawn steel
is delivered in annealed condition.
Cold drawn and Cold rolled bearing tubes tolerance control level | |||
Outer Diameter | Diameter Tolerance | Outer Diameter | Diameter Tolerance |
(mm) | (mm) | (mm) | (mm) |
≤12.70 | ±0.08 | >50.80~63.5 | ±0.25 |
12.7~25.40 | ±0.10 | >63.50~76.20 | ±0.30 |
>25.4~38.10 | ±0.15 | >76.20~101.60 | ±0.40 |
>38.1~50.80 | ±0.20 | >101.60~203.20 | ±0.50 |
Remark:Tolrance on outer diameter and Inner diameter,wall thickness can be specified by customer requested, |
Delivery Condition: +C, +LC, +SR, +A, +N
Production Size Range:
OD: 10-210mm
WT: 2-30mm
Length: 2-5.8m
Bearing and Gearing Steel Tube Characteristic:
High strength
High-precision
Good Surface Quality
Stable quality
Smooth Roughness
Production Processs:
Seamless Cold Drawn or Seamless Cold Rolled + Heat Treatment or Stress released control
Product Categories : Seamless Bearing Tubes
Home > Products > Seamless Bearing Tubes > 20CrNiMoH 8620H gearing steel tubes bearing steel pipes
Send Inquiry
Mr. Kevin
Tel:86-0574-87491308
Fax:86-0574-87491848
Mobile Phone:+8613355844917
Email:sales@hjbearingtube.com
Address:Industrial Park, Zhangting Town,Yuyao City, Ningbo, Zhejiang
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.